I'm not sure about ticket sell outs....especially in Valencia, that's Spain and if Renault are not able to race, even with Schumi, I doubt the Spain fans will go without Alonso vs Schumi....

You have a point there, but I still think it may simply due to the fact that it will be his first race back and people will be curious. However, with Spa's proximity to Germany, I'll bet you a quarter it sells out.